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An overview of the systems development life cycle (sdlc), focusing on the phases, tools, and conversions involved. The sdlc is a process used by corporations to plan, design, build, test, and implement information systems. The six phases - analysis, design, development, testing, implementation, and maintenance - and discusses the tools used in each phase, as well as the different types of system conversions.
Typology: Slides
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Structure design is a blue print of a computer system solution to a given problem having the same components and inter-relationship among the same components as the original problem. Input, output and processing specifications are drawn up in detail. In the design stage, the programming language and the platform in
Development
The tasks in the Development Phase include:
Acquiring software Acquiring hardware Testing the new system
Before actually implementing the new system into operations, a test run of the system is done removing all the bugs, if any. It is an important phase of a successful system. After codifying the whole programs of the system, a test plan should be developed and run on a given set of test data. The output of the test run should match the expected results.
Using the test data following test run are carried out:Docsity.com
During this phase, all the programs of the system are loaded onto the user's computer. After loading the system, training of the users starts. Main topics of such type of training are:
How to execute the package
How to enter the data
How to process the data (processing details) Docsity.com
Maintenance
Systems maintenance is very important and is an ongoing activity
Two parts
Systems audit Periodic evaluation
The review of the system is done for:
knowing the full capabilities of the system
knowing the required changes or the additional requirements
studying the performance
Alternatives to the systems life cycle - Use if systems life cycle is not feasible
Prototyping is building a model RAD – Rapid applications development
What is a system? What are the six phases of the systems life cycle? Why do corporations undergo this process? What are the tools used in the analysis phase? What is top-down analysis? How is it used? Describe each type of system conversion. Which is the most commonly used? Docsity.com
What is system maintenance? When does it occur? Explain prototyping and RAD. When might they be used by corporations?
